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- /*********************************************************************
- *
- * Filename: irlmp.h
- * Version: 0.9
- * Description: IrDA Link Management Protocol (LMP) layer
- * Status: Experimental.
- * Author: Dag Brattli <dagb@cs.uit.no>
- * Created at: Sun Aug 17 20:54:32 1997
- * Modified at: Tue Apr 6 20:05:14 1999
- * Modified by: Dag Brattli <dagb@cs.uit.no>
- *
- * Copyright (c) 1998 Dag Brattli <dagb@cs.uit.no>, All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * Neither Dag Brattli nor University of Troms° admit liability nor
- * provide warranty for any of this software. This material is
- * provided "AS-IS" and at no charge.
- *
- ********************************************************************/
-
- #ifndef IRLMP_H
- #define IRLMP_H
-
- #include <asm/param.h> /* for HZ */
-
- #include <linux/config.h>
- #include <linux/types.h>
-
- #include <net/irda/irda.h>
- #include <net/irda/qos.h>
- #include <net/irda/irlap.h>
- #include <net/irda/irlmp_event.h>
- #include <net/irda/irqueue.h>
- #include <net/irda/discovery.h>
-
- /* LSAP-SEL's */
- #define LSAP_MASK 0x7f
- #define LSAP_IAS 0x00
- #define LSAP_ANY 0xff
-
- #define DEV_ADDR_ANY 0xffffffff
-
- /* Predefined LSAPs used by the various servers */
- #define TSAP_IRLAN 0x05
- #define LSAP_IRLPT 0x06
- #define TSAP_IROBEX 0x07
- #define TSAP_IRCOMM 0x08
-
- #define LMP_HEADER 2 /* Dest LSAP + Source LSAP */
- #define LMP_CONTROL_HEADER 4
- #define LMP_MAX_HEADER (LAP_HEADER+LMP_HEADER)
-
- #define LM_MAX_CONNECTIONS 10
-
- #define LM_IDLE_TIMEOUT 2*HZ /* 2 seconds for now */
-
- typedef enum {
- S_PNP,
- S_PDA,
- S_COMPUTER,
- S_PRINTER,
- S_MODEM,
- S_FAX,
- S_LAN,
- S_TELEPHONY,
- S_COMM,
- S_OBEX,
- S_ANY,
- S_END,
- } SERVICE;
-
- typedef void (*DISCOVERY_CALLBACK1) (discovery_t *);
- typedef void (*DISCOVERY_CALLBACK2) (hashbin_t *);
-
- typedef struct {
- QUEUE queue; /* Must be first */
-
- __u16 hints; /* Hint bits */
- } irlmp_service_t;
-
- typedef struct {
- QUEUE queue; /* Must be first */
-
- __u16 hint_mask;
-
- DISCOVERY_CALLBACK1 callback1;
- DISCOVERY_CALLBACK2 callback2;
- } irlmp_client_t;
-
- struct lap_cb; /* Forward decl. */
-
- /*
- * Information about each logical LSAP connection
- */
- struct lsap_cb {
- QUEUE queue; /* Must be first */
-
- int magic;
-
- int connected;
- int persistent;
-
- struct irda_statistics stats;
-
- __u8 slsap_sel; /* Source (this) LSAP address */
- __u8 dlsap_sel; /* Destination LSAP address (if connected) */
-
- struct sk_buff *tmp_skb; /* Store skb here while connecting */
-
- struct timer_list watchdog_timer;
-
- IRLMP_STATE lsap_state; /* Connection state */
- struct notify_t notify; /* Indication/Confirm entry points */
- struct qos_info qos; /* QoS for this connection */
-
- struct lap_cb *lap; /* Pointer to LAP connection structure */
- };
-
- /*
- * Information about each registred IrLAP layer
- */
- struct lap_cb {
- QUEUE queue; /* Must be first */
-
- int magic;
- int reason; /* LAP disconnect reason */
-
- IRLMP_STATE lap_state;
-
- struct irlap_cb *irlap; /* Instance of IrLAP layer */
- hashbin_t *lsaps; /* LSAP associated with this link */
-
- __u8 caddr; /* Connection address */
- __u32 saddr; /* Source device address */
- __u32 daddr; /* Destination device address */
-
- struct qos_info *qos; /* LAP QoS for this session */
- struct timer_list idle_timer;
- };
-
- /*
- * Used for caching the last slsap->dlsap->handle mapping
- */
- typedef struct {
- int valid;
-
- __u8 slsap_sel;
- __u8 dlsap_sel;
- struct lsap_cb *lsap;
- } CACHE_ENTRY;
-
- /*
- * Main structure for IrLMP
- */
- struct irlmp_cb {
- int magic;
-
- __u8 conflict_flag;
-
- discovery_t discovery_cmd; /* Discovery command to use by IrLAP */
- discovery_t discovery_rsp; /* Discovery response to use by IrLAP */
-
- int free_lsap_sel;
-
- #ifdef CONFIG_IRDA_CACHE_LAST_LSAP
- CACHE_ENTRY cache; /* Caching last slsap->dlsap->handle mapping */
- #endif
- struct timer_list discovery_timer;
-
- hashbin_t *links; /* IrLAP connection table */
- hashbin_t *unconnected_lsaps;
- hashbin_t *clients;
- hashbin_t *services;
-
- hashbin_t *cachelog;
- int running;
-
- spinlock_t lock;
-
- __u16_host_order hints; /* Hint bits */
- };
-
- /* Prototype declarations */
- int irlmp_init(void);
- void irlmp_cleanup(void);
- struct lsap_cb *irlmp_open_lsap( __u8 slsap, struct notify_t *notify);
- void irlmp_close_lsap( struct lsap_cb *self);
-
- __u16 irlmp_service_to_hint(int service);
- __u32 irlmp_register_service(__u16 hints);
- int irlmp_unregister_service(__u32 handle);
- __u32 irlmp_register_client(__u16 hint_mask, DISCOVERY_CALLBACK1 callback1,
- DISCOVERY_CALLBACK2 callback2);
- int irlmp_unregister_client(__u32 handle);
- int irlmp_update_client(__u32 handle, __u16 hint_mask,
- DISCOVERY_CALLBACK1, DISCOVERY_CALLBACK2);
-
- void irlmp_register_link(struct irlap_cb *, __u32 saddr, struct notify_t *);
- void irlmp_unregister_link(__u32 saddr);
-
- int irlmp_connect_request( struct lsap_cb *, __u8 dlsap_sel,
- __u32 saddr, __u32 daddr,
- struct qos_info *, struct sk_buff *);
- void irlmp_connect_indication( struct lsap_cb *self, struct sk_buff *skb);
- void irlmp_connect_response( struct lsap_cb *, struct sk_buff *);
- void irlmp_connect_confirm( struct lsap_cb *, struct sk_buff *);
- struct lsap_cb *irlmp_dup(struct lsap_cb *self, void *instance);
-
- void irlmp_disconnect_indication(struct lsap_cb *self, LM_REASON reason,
- struct sk_buff *userdata);
- void irlmp_disconnect_request(struct lsap_cb *, struct sk_buff *userdata);
-
- void irlmp_discovery_confirm(hashbin_t *discovery_log);
- void irlmp_discovery_request(int nslots);
- void irlmp_do_discovery(int nslots);
- discovery_t *irlmp_get_discovery_response(void);
-
- void irlmp_data_request( struct lsap_cb *, struct sk_buff *);
- void irlmp_udata_request( struct lsap_cb *, struct sk_buff *);
- void irlmp_data_indication( struct lsap_cb *, struct sk_buff *);
- void irlmp_udata_indication( struct lsap_cb *, struct sk_buff *);
-
- void irlmp_status_request(void);
- void irlmp_status_indication( LINK_STATUS link, LOCK_STATUS lock);
-
- int irlmp_slsap_inuse( __u8 slsap);
- __u8 irlmp_find_free_slsap(void);
- LM_REASON irlmp_convert_lap_reason( LAP_REASON);
-
- __u32 irlmp_get_saddr(struct lsap_cb *self);
- __u32 irlmp_get_daddr(struct lsap_cb *self);
-
- extern char *lmp_reasons[];
- extern int sysctl_discovery_slots;
- extern int sysctl_discovery;
- extern struct irlmp_cb *irlmp;
-
- static inline hashbin_t *irlmp_get_cachelog(void) { return irlmp->cachelog; }
-
- #endif
-